St. John, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. John, a city in Rolette County, North Dakota.
Tonight
31°F
Patchy Fog
Patchy fog. Mostly cloudy, with a low around 31. Northwest wind around 8 mph.
7-day forecast for St. John
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 31°F | Patchy Fog | 8 mph NW | 0% |
| Wednesday | 47°F | Patchy Fog then Mostly Sunny | 9 to 13 mph N | 0% |
| Wednesday Night | 28°F | Mostly Cloudy | 10 to 14 mph N | 1% |
| Thursday | 38°F | Partly Sunny | 3 to 13 mph E | 2% |
| Thursday Night | 25°F | Partly Cloudy | 3 to 14 mph S | 0% |
| Friday | 46°F | Mostly Sunny | 9 to 14 mph SW | 0% |
| Friday Night | 32°F | Partly Cloudy | 8 to 13 mph SW | 0% |
| Saturday | 50°F | Mostly Sunny | 14 to 20 mph W | 7% |
| Saturday Night | 33°F | Partly Cloudy | 10 to 15 mph W | 5% |
| Sunday | 51°F | Mostly Sunny | 9 to 13 mph SW | 0% |
| Sunday Night | 38°F | Partly Cloudy | 13 to 21 mph SW | 1% |
| Monday | 51°F | Mostly Sunny | 18 to 25 mph W | 0% |
| Monday Night | 33°F | Partly Cloudy | 8 to 15 mph W | 0% |
| Tuesday | 48°F | Mostly Sunny | 8 to 14 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for St. John (48.944, -99.713). Updated through the day.
Growing snapshot for St. John
Last spring frost
May 19
First fall frost
Sep 24
Growing season
126 days
Hardiness zone
3b
More local growing data for St. John: nearby ZIP 58369 weather · frost dates · planting calendar · North Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Belcourt Keya Radio, Nd (8.6 mi from St. John). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.